Table 4.

Factor load matrix after rotation transformation.

Four diagnostic variables	Component
	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15
Distention and fullness of the stomach	−.028	.005	.015	.056	.332	−.026	.121	.024	.160	.694	.093	−.202	.008	−.053	−.009
Palpitations	.544	.021	.195	.136	.051	.242	.167	−.057	.046	.026	.029	−.130	−.321	.359	−.109
Stifling sensation in the chest	.140	.020	.136	.017	.139	.010	.096	−.019	−.091	.034	.041	−.021	.056	.833	.072
Loose stool	−.073	.128	−.047	.416	.113	−.086	.209	−.075	.449	−.049	.180	.068	.027	.034	.192
Stomach tingling Sharp pain in stomach	−.095	−.170	.356	.048	−.014	.201	.478	.214	.041	.185	−.060	.101	−.341	−.076	.213
Frequent sighing	.629	−.281	.050	−.060	−.121	−.100	.058	.046	.016	.035	.074	.251	.080	.119	.215
Constipation	−.205	−.081	.089	.502	.145	.026	−.038	−.195	.133	.324	.142	.141	.363	−.105	.142
Irritability	.017	−.024	.248	.013	−.118	.590	.164	.079	−.132	−.327	.136	−.095	.161	−.141	.101
Bitter taste in the mouth	.047	−.010	.049	.133	.282	.622	−.074	−.156	−.056	.094	−.200	.024	.036	−.061	.195
Poor appetite	−.050	.013	−.037	.087	−.253	.095	−.097	−.065	−.158	.720	−.014	.008	.024	.064	.035
Abdominal distention	.060	−.009	−.027	.142	.101	.235	.195	−.051	.187	.187	.114	.200	.295	.124	.414
Fetid mouth odor	.078	.041	−.075	−.034	.165	.044	.078	.064	−.007	−.020	−.054	−.033	−.054	.039	.814
Belching	.142	.009	−.192	.074	.425	−.027	.065	.016	.018	.172	.131	.458	−.180	.051	.017
Sallow complexion	.029	.041	.029	.005	−.057	.005	.116	−.039	.775	−.024	.007	.010	.032	−.092	−.046
Acid regurgitation	.012	−.098	−.097	.149	.794	.075	.006	.010	.006	−.112	.027	.041	.050	.131	.143
Stomach aversion to cold	.670	.150	−.146	.000	.208	.074	−.074	.011	.068	−.139	−.093	.216	−.064	.008	.056
Heartburn	.065	−.203	.152	−.143	.702	.183	.126	−.158	−.052	.106	−.059	−.004	.090	.013	.070
Listlessness	.388	−.002	−.032	.730	.024	−.021	.066	.159	.093	−.035	−.059	.126	−.175	.040	−.092
Sensation of coldness of the body and limbs	.795	.169	−.088	.125	.068	−.043	.052	.058	−.047	.022	−.012	−.096	.191	−.017	−.055
Nausea	.174	.056	.028	.325	.064	−.181	.050	.213	−.004	−.061	−.270	.462	.363	.395	.021
Lack of strength	−.011	.010	.038	.738	−.005	.190	−.033	.098	−.047	.166	.014	−.318	−.044	.037	−.024
Insomnia	−.163	−.054	−.079	−.081	.161	.561	−.129	.088	.426	.035	.353	−.082	.168	.130	−.072
Profuse dreaming at night	.110	−.112	.020	−.112	.062	.349	−.112	.004	.068	.040	.027	−.071	.786	.051	−.031
Dry mouth	.066	.063	.204	.070	.102	.569	.081	−.068	−.014	.341	−.129	.173	.161	.175	−.086
Tinnitus	.395	.082	−.018	.316	−.135	.032	.345	−.127	−.315	−.035	.180	.100	.131	.163	.127
Pale red tongue	.042	−.122	−.040	.105	−.117	.045	−.073	.860	.023	.038	.035	.061	.051	−.081	.011
Red tongue	.015	−.006	.386	−.015	−.031	.182	−.034	−.724	.017	.175	−.131	−.012	.111	−.133	−.068
Dark tongue	.099	.170	−.160	−.082	.088	−.097	.768	−.033	−.046	−.190	.045	−.019	.046	.044	.237
Enlarged tongue	.100	.160	−.122	.312	−.126	−.018	−.083	.251	.479	.014	−.226	−.138	.016	.000	.293
Tongue with petechiae	−.013	−.069	−.057	.079	.056	.083	.669	−.058	.266	.180	−.110	.061	−.180	.153	−.117
Teeth-marked tongue	.258	.296	.080	−.181	.182	−.279	−.056	.254	.357	.217	−.072	−.108	.110	−.187	.112
White tongue coating	.092	−.035	−.893	−.074	.052	−.133	.056	.145	.044	.013	−.039	.047	.089	−.067	.079
Yellow tongue coating	−.037	.100	.895	−.066	.035	.039	−.094	−.108	.025	−.024	.036	−.076	.088	.108	−.033
Thick tongue coating	.080	.889	−.043	.044	−.112	−.016	.002	−.040	−.053	−.021	−.005	.001	−.028	.089	.051
Thin tongue coating	.014	−.849	−.095	−.041	.208	−.083	.006	.074	−.093	−.015	.000	−.078	.105	−.096	−.083
Greasy tongue coating	.080	.685	.135	−.076	.083	−.127	.160	−.014	.178	.035	.132	−.094	.074	−.333	−.134
Wiry pulse	−.463	.059	.156	−.007	.168	−.036	.177	.096	−.077	.073	−.532	−.051	.046	−.100	−.193
Fine pulse	.085	−.003	−.055	−.121	−.010	.063	.001	.034	−.039	−.127	.139	.794	−.008	−.047	−.009
Choppy pulse	.021	.140	−.117	.196	.166	.020	.450	−.101	.106	−.129	−.500	−.162	.113	−.323	−.085
Slippery pulse	−.039	.128	.090	.090	.094	−.055	.051	.121	−.007	.036	.783	.110	.070	−.068	−.113

Note. Extraction method: principal component analysis. Rotation method: Kaiser standardized orthogonal. Rotation was converged after 20 iterations. Factor load values that were positive and larger or equal to 0.25 are depicted in bold.